Glass-annealing oven.



J. M. LENTS.

GLASS ANNEALING OVEN.

APPLICATIONEILED MAY 19. {916.

Patented Dec. 31,1918.

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J. M. LENTS.

GLASS ANNEALING OVEN. mam

APPLICATION FILED MAY19. I916.

Patented Dec. 31, 1918.

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"nNrran cranes manna crate JOHN MURL LENTS, or EVANSVILLE, INDIANA, ASSIGNOR TO THE OWENS no'rrnza MACHINE COMPANY, or 'ronnno, onto, a coRroaA'rIoN-or omo.

GLASS-ANNEALING OVEN.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed May 19, 1916. Serial No. 98,595.

i To all whom it may concern:

scription of the same, reference being had to the accompanying drawings, forming part of this specification.

The object of my invention is to provide an automatic carrying-in apparatus whereby glassware automatically conveyed. froma mold machine to the carrying-in apparatus may be automatically carried into the annealing oven and automatically transferred from the carrying-in device-0n to the continuously moving leer-pans of that type of annealing ovens in which there are now commonly employed continuously moving conveyer-pans whereby the ware is loaded into one end of the annealing oven, unloaded at 4 the other end of the annealing oven, and

during its passage through the annealing j oven is'properly annealed.

There are several types of conveye'rs now in use for conveying ware from the mold machine to the loading end of the annealing oven, any of which may be used in connection with my invention, and I do not claim such conveying apparatus for the delivery of the ware to the loading end of the annealing oven as part of my invention.

he object of my invention is to receive the ware by any one of the devices now in use and which are designed to automatically transfer the ware tothe carrying-in apparatus, and automatically carry the ware from the point where it is delivered to the carrying-in apparatus into the annealing oven and transfer -it automatically to the continuously moving, conveyer-pans which pass it through the annealing oven.

The accompanying drawings refer only to the loading end of such annealing oven.

Figure l is a horizontal section through the loading end of the annealing oven, the line 1-1, of the vertical longitudinal section shown in Fig. 2, together with the apparatus outside of the annealing oven and cooperating with the mechanism for transfer: ring the ware outside of the annealing oven, electrical connections being shown diagrammatically.

along- Fig. 2 is a vertical longitudinalsection of the loading end of the annealing oven along the line 22, in Fig. 1.

% Fig. 3 is a detail section in a vertical plane 1nd1cated by the lifie 33, of Fig. 1.

Fig. 4 is a transverse vertical section of the frame in which the pintle-chain conveyer is operated.

Fig. 5 is a vertical longitudinal section through the center of the pintle-chain conveyer 2.

Fig. 6 is a plan view of parts 33, 34, 35

shown in Fig. 1.

Fig. 7 is a plan view of the junction and switch connection between the automatic conveyers which carry the ware from the mold machines to the loading end of the annealing oven and showing one of several well known methods of transferring ware from such conveyer to the carrying-in conveyer at the loading end of the annealing oven.

Fig. 8 is a detail diagrammatic view of one of the motor switch controlling circuits.

Like numerals of reference refer to like partsthroughoutthe several views of the drawings.

Referring to the drawings in detail (Fig. 1) A, A, A, designates the walls of the loading end of the annealing oven. Suitable openings in the two side walls and front wall are made to receive the operating parts'of the apparatus. A

1 is a cast-iron guide frame extending across the loading end of the annealing oven and through openings in the side walls, in which guide frame is operated the pintle chain conveyer 2, likewise extending across the loadi'n end of the annealing oven and operating t irough openings in the side walls of the annealing oven.

At one end, on a jack-shaft, is a sprocket wheel 3 which carries pintle chain conveyer 2, and at the other end supported on a similar .jack shaft 5, 'is a driving sprocket 4:, which carries and drives pintle chain conveyer 2. On a separate shaft an idler 6 placed between the driving sprocket 4- and the driven sprocket 3 serves to support and reciprocates longitudinallyv within the an nealing oven.

Mounted on a driving shaft 16 are eccentrics 15 and the eccentric rods and air cushions 17 connect the eccentrics l5 withthe spacer bar 12 for imparting reciprocating motion to the carriage as a'bove described.

Driving shaft 16 is rotated 'by driven sprocket 18'(Fig 3) to which it is keyed,

' through sprocket chain 19 driven by the sprocket wheel 20, which inturn driven by worm-gear 21 mounted on the end of driving shaft and pulley 22 in belt connec: tion with motor 23. i

The motor 23 is adapted to be started and stopped automatically, the inaugurationof its movement being under the control of the pintle chain mechanism and the arresting of its movement under the control of the pusher mechanism, whereby, as will hereinafter appear at the proper time, the pusher will be operated to make one complete reciprocation, and its movement then arrested.

To effect the desired result with the employment of simple and efficient means, the

shaft orgear wheel 25 is provided with an electrical contact wheel 26, and the shaft 16 is provided with a similar contact wheel. ()ne of these contact wheels, together with the associated electric circuits, is illustrated in Fig. 8, wherein it will be seen that a rotary drum 50 is provided with a conducting segment 51 and with a conductingring 52. Branches 53 and 54 leading from supply mains are provided, the one with a permanent electric connection with the ring 52 and the other with a brush 5?. In line with the brush 54 is a second brush 56 forming the terminal of a branch circuit including a solenoid 28, the other terminals of said circuit being formed by a brush 57 in contact with the ring 52. With this arrangemcnt, when the conducting segment 51 bridges the gap between the brushes 54 and 56, the circuit through the solenoid 28 is completed and a suitable motor controlling switch may be operated thereby.

The preferred form of switch is illus trated diagrammatically in Fig. 1, wherein I it will be ,seen that a switch lever 30 is adapted, when "moved in one direction, to

establish the circuit from the mains 55 through the motor 23 and when moved in the other dlrectlon to Interrupt or break said circuit. Solenoids 27 and 28 aremounted in proximity to-switch lever 30 and provlded with movable cores 27" and 28* adapted,

When the circuit is established, to be drawn into the solenoid and to thereby operate the switch lever by pushing the same in one direction or the other. As shown in Fig. 1, the solenoid 27 is in the circuit controlled by the contact drum on the shaft of gear wheel 25 and the solenoid 28 is in the circuit with the contact drum 29 controlled by the pusher pivot switch 30 to start motor 23 to rotate driving shaft 16. The eccentrics 15 on shaft 16 reciprocate carriage 10, 11, 12, and pushbar 10 moves forward to push the line of ware off of the pintle chain conveyer 2 on to the inclined plate 42 and having accomplishedthis i-t is withdrawn out of the line ofthe operation of the pintle chain conveyer 2. Simultaneously, by the rotation of shaft 16 cam 31 opens a cam-operated air valve 32 which air-valve is supplied from the air supply pipe 32. The opening of valve 32 admits the air behind the piston in cylinder 33 and the connecting rod 34 from the piston in cylinder 33 is caused to retreat and with draw one end of the pivoted lever 35 so that the curved end of. the pivoted lever 35 is thrown across the path of the continuously moving pintle chain conveyer 2 to arrest the incoming ware on said conveyer until by a complete rotation of shaft 16 pushbar 10 has been withdrawn from the path of the war'e on pintle chain conveyer 2. Thereupon the cam 31 again operates the air valve 32 admitting air to the other side of the piston in cylinder 33, and the curved end of lever 35 is withdrawn from the path of the incoming ware which latter proceeds with the travel of the conveyer into and across the end of the annealing oven.

At the feeding side of the annealing oven and on each side of the pintle chain conveyer 2 there are guides 36 to prevent the ware on the pintle chain conveyer from being thrown off when its onward movement is arrested by lever 35.

Said guides extend from the junction 37 to the inside of the wall of the annealing oven, at which point there is a clearance between the ends of the guides 'and push bar 10 to prevent interference.

37 is a revolving disk junction between the conveyer 38 which conveys the ware from the mold machines to the annealing oven, the conveyer chain being driven by reegaoe sprocket wheel, not shown, mounted on shaft 39, on which there is a pulley and belt con nection with motor which operates conveyer 38, but these parts are not included in my invention and any one of several arrangements for this purpose may be employed to deliver the ware to the continuously moving pintle chain conveyer 2, as heretofore stated.

To overcome any tendency of the ware to follow along close to the side walls or to spread out against the side walls when being advanced by the pusher on to the conveyer pans, inclined guide boxes 41 are mounted on the inner faces of the side walls so as to direct the were correctly on to the inclined plate 42.

The surface of this inclined plate 42 abuts approximately against the moving inside edge of the pintle chain conveyer 2 at its higher end and the other end rests upon or close to the continuously moving conveyerpans or leer-pans which convey the ware through the annealing oven, so that the ware slides upon the same with 'no appreciable drop.

The ware as it accumulates upon this inclined plate 42 is gradually pressed forward and slides forward and downward upon this inclined plate until it is pushed from the inclined plate on to the leer-pan or continuously moving conveyer to be carried through the annealing oven.

,When the shaft 16 has made practically one revolution and thus completed the operation of pushing oil the ware from conveyer 2 on to the inclined plate 42, and pushbar 10 has been withdrawn out of the path of the ware, the contact 29 closes the circuit through solenoid 28 which opens pivot switch 30 and breaks the circuit passing through motor 23, thus stopping the motion of motor 23 until through the timed revolution of contact 26, the circuit is again closed through motor 23 to repeat the operation.

What is claimed as new and as constituting my invention is:

1. In a device of the character described, the combination with a continuously moving leer conveyer, a loading conveyer passing through the leer wall above said leer conveyer, a casing within the leer inclosing said loading conveyer, a smooth surface connected to said casing and resting on said leer conveyer, means for intermittently pushing ware from said loading conveyer to said smooth surface, and means for preventing passage of ware into the leer while said pushing means is in operation.

2. In a device of the character described, the combination with a continuously moving leer conveyer, a continuously operating loading conveyer extending into the leer, intermittently operated pushing means for pushing ware from said loading conveyer to said leer conveyer, a lever preventing passage of ware into the leer while the pushing means is in operation, a shaft for reciprocating said pushing means, and means on said shaft for operating said lever.

3. In a device of the character described,

the combination with a continuously moving leer conveyer, a' loading conveyer passing through the leer wall above said leer conveyer, a casing Within the leer inclosing said loading" conveyer, a smooth surface connected to said casing and resting on said leer conveyer, means for intermittently pushing ware from said loading conveyer to said smooth surface, and means controlled by said loading conveyer for causing a single reciprocation of the pushing means and for preventing the entry of ware into the leer during such reciprocation.

' 4. In a device of the character described, the combination with a leer conveyer and a loading conveyer passing through the leer wall, of asmoothsurface leading from the loading conveyer to the leer conveyer, means for intermittently pushing ware from said loading conveyer to said smooth surface, and means for preventing passage of ware into the leer while said pushing means is in operation.

5. In a device of the character described, the combination of a leer conveyer anda loading conveyer extending into the leer, pushingmeans for pushing ware from the loading conveyer to the leer conveyer, means for preventing the passage of ware into the leer while the pushing means is in operation, and means for intermittently operating the pusher and the passage preventing means.

6. In a device of the character described, the combination with a continuously moving leer conveyer, a loading conveyer passing through the leer wall above said leer conveyer, a smooth surface resting on said leer conveyer, means for intermittently pushing ware from said loading conveyer to said smooth surface, and means controlled by said loading conveyer for causing a single reciprocation of the pushing means and for preventing the entry of ware into the leer during such reciprocation.

7. The combination with a leer conveyer, of a loading conveyer traveling transversely across the leer conveyer for carrying articles into the leer, a pusher operable intermittently to transfer rows of articles from the loading conveyer to the leer conveyer, and

a stop cooperating with said pusher and moved into the path of the oncoming articles to prevent them from being carried into the leer during the operation of said pusher, said stop operable to arrest the said articles independently of the movement the conveyers.

'8. The combination with a leer and a leer conveyer, of a loading conveyer extending transversely through the leer above the leer conveyer, on which articles are carried seriatim into the leer, non-traveling guides between which the bottles pass as they enter the leer,"a pusher by which a row of bottles is transferred from the loading conveyer to the leer conveyer, and a stop cooperating with said pusher and moved into position to intercept the oncoming articles between said guides and thereby prevent them from being carried into the path of the pusher during the operation of the latter.

9. The combination with a leer conveyor, of a loading 'conveyer extending transversely through the leer above the leer conveyer, on which articles are carried srz'atim into the leer, non-traveling guides between which the bottles pass as they enter the leer, a pusher by which a row of bottles is transferred from the loading conveyer to the leer conveyer, a smoothoinclined surface having its upper and lower edges substantially flush with the loading conveyer and leer conveyer respectively, and a stop cooperating with said pusher and moved into position to intercept the oncoming articles between 'said guides and thereby prevent them from being carried into the path of the pusher during the operation of the latter.

. JOHN MURL LENTS. 

